About Glitchest

Glitchest is a free, independent tool for adding glitch, VHS, datamosh and signal-loss effects to your videos and images — right in the browser, with no upload and no account.

What it is

Glitchest is a real-time effects editor that runs on the open web. You load a clip or photo, pick a preset (VHS, Datamosh, Cyber Glitch, Broken Monitor, Y2K, Acid, Old Film, Signal Jam, Dead Channel) or dial in the individual knobs — RGB split, scanlines, hue, noise, datamosh trail, a Time Machine era dial and more — then export a clean MP4 or a PNG frame. There's a rectangle/ellipse mask, and an effect-box timeline — drop effect boxes over the clip, fade each one in and out, and layer them on lanes so effects build, hit, and blend over time.

How it works — and why it's private

The effects are rendered on your own device using WebGL, and video is exported in the browser with WebCodecs. That means your footage never leaves your computer — nothing is uploaded to a server and there's no account to create. It's the same reason it's fast: the work happens locally, not in a queue.

Who makes it

Glitchest is built and maintained by an independent developer who ships small, focused web tools. It's free to use and improved continuously — new presets, guides and look recipes are published regularly on the blog. You can follow updates and new looks on Instagram at @glitchest01.

What you can make

People use Glitchest for Instagram Reels and TikToks, analog-horror and dreamcore edits, retro/VHS and Y2K aesthetics, music-video transitions, glitch thumbnails, profile pictures and album art. The look recipes give you exact knob settings with a real before & after for each style.